Gas-regulator.



F. M. BROOKS.

GAS REGULATOR. APPLICATION FILED NOV. 1, 1907.

PATENTED JUNE 9, 1908.

FRANK M. BROOKS, OF NEW YORK, N. Y.

GAS-REGULATOR.

Application filed November 1, 1907.

Specification of Letters Patent.

Patented June 9, 1908.

Serial No. 400,295.

To all whom it may concern:

Be it known that I, FRANK M. Bnooxs, a citizen of the United States, and a resident of the borough of Brooklyn, county of Kings, city and State of New York, have invented a new and Improved Gas-Regulator, of which the following is a specification, refer ence being had to the accompanying drawings, in which- Figure 1 illustrates a longitudinal section of the invention; Fig. 2 illustrates a transverse section; Fig.- 3 illustrates a longitudinal section of the body of the regulator; Fig. 4 illustrates an elevation of the sprin Fig. 5 illustrates an elevation of the need e valve; Fig. 6 illustrates an elevation of the regulating thumb screws.

The more important features of the inven tion are a centrally located needle valve, which operates in a centrally located gas exit, the valve being made thin in cross-section, so that it offers the least possible obstruction to the volume and pressure of the gas below the exit, and means whereby the flow may be regulated very gradually so that exactness in the amount allowed to pass through the exit may be easily and accurately determined. Aside from these advantages, there are certain structural improvements which will be obvious from the following description.

A represents the body of the regulator. It is threaded at B for connection with the gas supply pipe and at its other end is provided with a suitable terminal or tip C, in which the gas exit hole D is made. I show the terminal as made of a separate piece of metal threaded into the body part. This is merely for convenience in manufacture. These parts may be made integral, if re ferred. The body may also be threadec, as at E, for the convenient attachment of any desired fixture, or device.

F is the needle valve. It consists of a thin piece of metal, preferably having abroadrear part G, a reduced stem section H and a conical or needle valve extremity I. In it a hole J is made and it preferably bears such size relation to the interior recess in the body part that the opposite edges of the broad section G shall rest in and be guided by oppositely located grooves K, K, made in the body part.

L is the gas regulating screw. It has a thumb nut M on its outer end and a tapering or conical surface N on its inner end and terminates 1n a button l1ke part 0. The central or stem like part of this regulator is screw-threaded, as seen at P, and it works in a correspondingly threaded hole Q, made through the wall of the body at such point that when the parts are assembled, with the tapering or conical part N of the regulator in the hole J in the needle valve, the turning of the regulator by the thumb screw will run it in or out, as the case may be, and thus, because of the engagement of the conical surface against the forward side of the hole J, the needle valve will be caused to move by slow gradations toward or from the exit D, in the jet of the device, and thus the flow of gas be regulated by the point of the valve entering the exit opening D, with deliberation and exactness. may at all times exist between the conical surface on the regulating screw and the for ward side of the hole in the needle valve, I provide a spring, preferably a spiral spring R, which encircles the stem section H of the needle valve, abutting at one end against shoulders S on the valve and at the other against the partially closed forward end of the jet, which spring will normally maintain the contact above referred to and will shove the needle valve inwardly as the conical sur face N of the regulator screw is withdrawn. The button on the end screw is provided so that it will prevent the undue unthreading of the screw, whereby it might become disengaged from the valve. The button will prevent this by striking against the back side of the valve.

It will be obvious to those who are familiar with such matters that the advantages of the thin needle valve, which presents a minimum of obstruction to the flow of gas and the slow action of the regulating screw and the guidance of the valve by engagement with the body part, may be secured in many ways aside from those represented in the special embodiment of the invention herein described and illustrated. I therefore do not limit myself to the special construction shown.

I claim:

In a gas regulator a thin flat and perfo rated needle valve embodying a body part of uniform'thickness throughout and a ta- In order that contact' of the regulating pered end, a threaded stern having a conical name to this specification in the presence of surface which works within the perforation two subscribing witnesses.

in the valve means to prevent disconnection between the stern and the valve and a spring FRANK BROOKS 5; which maintains contact between the valve Witnesses:

and the stem. PHILLIPS ABBOTT, In testimony whereof I have slgned my F. M. DoU'sBAol-L 

